KINGSTON, Jamaica - AILING President Hugo Chavez has returned to Venezuela, but that is not synonymous with a return to active service as leader of the country. His arrival in Caracas is not likely to silence political opponents salivating at the prospect of his demise, nor will it end the rampant speculation that his precarious health could force him to resign from office. He has been president for 14 years during which time he has been a populist in domestic policy and a nationalist in foreign policy. He has ignited the ire of local oligarchy for his income and wealth re-distribution policies and the opprobrium of the United States for his adulation of Cuba's Fidel Castro.